<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
         .box{
            width: 100px;
            height: 100px;
            margin: 100px auto;
            background-color: aqua;
        }
    </style>
</head>
<body>
    <!-- <iframe src="test.html" width="100%"  frameborder="0" scrolling="no" name="headFrame"></iframe> -->
    <div class="box"></div>
    <script>

        // const url = new URL(window.location.href);
        // console.log(url.searchParams.get('message'));
        // // => 'hello'
        // // url.searchParams.get('missing'); // => null
        // console.log(localStorage.getItem('name'))

    </script>
</body>
</html>